Accupro 63310205 Carbide Jobber Drill Bit Wire 40

Product Description

The ACCUPRO 63310205 is a solid carbide jobber-length drill bit sized to wire gauge 40, with a decimal inch diameter of 0.0980 inches. It features a 140-degree notched point geometry and an AlTiN (aluminum titanium nitride) coating for heat resistance and extended tool life in hard and abrasive materials. The overall length is 2 inches, with a flute length of 0.6310 inches and a maximum drilling depth of 0.5100 inches. The straight-cylindrical shank measures 1/8 inch in diameter, making it compatible with standard collets and chucks. This bit is designed for use by machinists and tool-room professionals working in production or precision drilling applications.

This bit is suited for drilling small-diameter holes in ferrous and non-ferrous metals, hardened steels, stainless steel, cast iron, and similar materials where heat buildup and tool wear are primary concerns. The AlTiN coating provides a thermal barrier that extends cutting life compared to uncoated or TiN-coated carbide bits. The 140-degree split point reduces walking at entry and lowers thrust requirements, which is critical when working with thin stock or precision fixtures. Typical applications include CNC machining centers, drill presses, and manual mills in job shops and manufacturing environments.

Key Features

• Wire size 40 (0.0980 inches decimal) solid carbide construction for rigidity in small-diameter drilling
• 140-degree notched point with web thinning reduces entry thrust and minimizes walking
• AlTiN coating extends tool life in high-heat, high-speed cutting of hard materials
• Right-hand spiral flute with regular helix promotes chip evacuation
• Straight-cylindrical 1/8 inch shank fits standard collets and drill chucks
• Maximum drilling depth of 0.5100 inches suits through-hole and blind-hole work within jobber-length reach

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide jobber drill bit for CNC machining centers, knee mills, and drill presses equipped with collets or chucks accepting a 1/8 inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with carbide tooling practices. Secure the shank fully in the collet or chuck before operation and verify runout is within acceptable limits, as carbide is brittle and sensitive to lateral loading. Do not use this bit in hammer-drill mode. Ensure spindle speed and feed rate are appropriate for the workpiece material and bit diameter before beginning the cut.